identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
658ED4EB06D756158B50EE0725B38ECB.text	658ED4EB06D756158B50EE0725B38ECB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Guiunio Dai, Chen, Li & Wu 2025	<div><p>Genus  Guiunio Dai, Chen, Li &amp; Wu gen. nov.</p><p>Type species.</p><p>Guiunio rarus Chen, Li, Dai &amp; Wu,  sp. nov.</p><p>Diagnosis.</p><p>Shell medium-sized, moderately thick, flat, long, sub-glossy, opaque. Anterior small, rounded and short; posterior extremely expanded, wide and long, with an indistinct obtuse angle in the middle of posterior margin. Umbo inflated, slightly higher at the hinge line, located at 1 / 4 of the dorsal margin, with concentric square carving. Periostracum yellowish green to brown with thin growth lines. Papillae on flap margin highly degraded.</p><p>Description.</p><p>Shell medium-sized, moderately thick, flat, long, sub-glossy, opaque. Anterior small, rounded and short; posterior extremely expanded, wide and long, with an indistinct obtuse angle in the middle of posterior margin. Dorsal margin slightly curved downwards and truncated in behind; ventral margin weakly curved or retuse. Umbo inflated, slightly higher the hinge line, located at 1 / 4 of the dorsal margin, with concentric square carving. Periostracum yellowish green to brown with thin growth lines. Posterior slope with an indistinct low secondary posterior ridge end in the angle on the posterior margin. Growth lines arranged in irregular concentric circles. Hinge long. Ligament short and strong. Beak cavities shallow, open. Mantle attachment scars on the pallial line obvious. Anterior adductor muscle scars irregularly oval, deep, smooth; posterior adductor muscle scars long oval, smooth. Left valve with two pseudocardinal teeth, posterior tooth elevated pyramidal or degenerated; anterior tooth thick and pyramidal. Right valve also with one pseudocardinal tooth, low triangular. Lateral teeth of both valves long and thin. Nacre light orange to white.</p><p>Mantle light brown, aperture margins black, papillae on flap margin highly degraded. Gills light brown, inner gills slightly longer and wider than outer gills. Labial palpsrown, distally pointed and irregularly fan-shaped in appearance. Visceral mass grayish white, foot light orange.</p><p>Etymology.</p><p>The species is made from the Gui for the abbreviation for Guangxi and unio for the unionid type genus.</p><p>Vernacular name.</p><p>桂蚌属 (gùi bàng shǔ).</p></div>	https://treatment.plazi.org/id/658ED4EB06D756158B50EE0725B38ECB	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Dai, Yu-Ting;Chen, Zhong-Guang;Li, Fan;Huang, Xiao-Chen;Ouyang, Shan;Wu, Xiao-Ping	Dai, Yu-Ting, Chen, Zhong-Guang, Li, Fan, Huang, Xiao-Chen, Ouyang, Shan, Wu, Xiao-Ping (2025): A new genus and species of freshwater mussel from the Pearl River Basin in Guangxi, China (Bivalvia, Unionidae, Gonideinae). Zoosystematics and Evolution 101 (2): 805-812, DOI: 10.3897/zse.101.151802
5484ED9AA328596B996E7D6BECDE71E8.text	5484ED9AA328596B996E7D6BECDE71E8.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Guiunio rarus Chen, Li, Dai & Wu 2025	<div><p>Guiunio rarus Chen, Li, Dai &amp; Wu sp. nov.</p><p>Fig. 2</p><p>Type material.</p><p>Holotype • 25_NCU_XPWU_GR001, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=109.80318&amp;materialsCitation.latitude=24.60754" title="Search Plazi for locations around (long 109.80318/lat 24.60754)">Zhongduhe River</a> [中渡河], Luzhai County [鹿寨县], Liuzhou City [柳州市], Guangxi Zhuang Autonomous Region [广西壮族自治区], China, 24.60754 ° N, 109.80318 ° E, leg. Fan Li, January 2024.</p><p>Paratypes • n = 2, 25_NCU_XPWU_GR002 –003, other information same as holotype .</p><p>Diagnosis.</p><p>Same as the genus.</p><p>Description.</p><p>Same as the genus.</p><p>Measurements.</p><p>Holotype: shell length 50.0 mm, height 29.4 mm, width 14.2 mm. Paratypes: shell length 32.2–72.3 mm, height 18.1–42.2 mm, width 7.8–26.2 mm.</p><p>Etymology.</p><p>The species is named after Latin  rarus for rare, referring to the rarity of it.</p><p>Vernacular name.</p><p>稀有桂蚌 (xī yǒu gùi bàng).</p><p>Distribution and ecology.</p><p>Known from the type locality only (Fig. 3). Living in the slow flowing stream with muddy and sandy bottom alongside  Cristaria plicata (Leach, 1814),  Nodularia douglasiae (Gray, 1833) and  Lanceolaria gladiola (Heude, 1877) . In addition, the new species was associated with a yet-to-be-described species of  Rhodeus Agassiz, 1832, which may be laying eggs in the gills of it (all type specimens of the new species were collected during the dry season in winter, so no fish eggs were observed in the gills). It is an occasional species in the type locality, accounting for less than 1 / 20 of the population of all freshwater mussels.</p></div>	https://treatment.plazi.org/id/5484ED9AA328596B996E7D6BECDE71E8	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Pensoft via Plazi	Dai, Yu-Ting;Chen, Zhong-Guang;Li, Fan;Huang, Xiao-Chen;Ouyang, Shan;Wu, Xiao-Ping	Dai, Yu-Ting, Chen, Zhong-Guang, Li, Fan, Huang, Xiao-Chen, Ouyang, Shan, Wu, Xiao-Ping (2025): A new genus and species of freshwater mussel from the Pearl River Basin in Guangxi, China (Bivalvia, Unionidae, Gonideinae). Zoosystematics and Evolution 101 (2): 805-812, DOI: 10.3897/zse.101.151802
